I've had to restart a few times now tbh - it's definitely effective but you need to be so careful.
I went out on Tuesday for a xmas party, was drinking a lot from a straw, talking a lot, didn't have time to apply a lot, and I could tell my growth was ruined the next morning.
10 days is enough to see progress and new skin forming, but definitely not long enough to think the hard bit is over. The skin is still so fragile - I think we'll need at least 2 months of strict applying with this method before we can start decreasing the application.